DE566996C - Process for the production of mechanically very strong bodies of any prescribed shape from tungsten, thorium, molybdenum and carbon - Google Patents
Process for the production of mechanically very strong bodies of any prescribed shape from tungsten, thorium, molybdenum and carbonInfo
- Publication number
- DE566996C DE566996C DEL62568D DEL0062568D DE566996C DE 566996 C DE566996 C DE 566996C DE L62568 D DEL62568 D DE L62568D DE L0062568 D DEL0062568 D DE L0062568D DE 566996 C DE566996 C DE 566996C
- Authority
- DE
- Germany
- Prior art keywords
- thorium
- tungsten
- molybdenum
- carbon
- mechanically
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229910052721 tungsten Inorganic materials 0.000 title claims description 12
- 239000010937 tungsten Substances 0.000 title claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 11
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 title claims description 11
- 229910052799 carbon Inorganic materials 0.000 title claims description 10
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 title claims description 9
- 229910052750 molybdenum Inorganic materials 0.000 title claims description 9
- 239000011733 molybdenum Substances 0.000 title claims description 9
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 title claims description 6
- 229910052776 Thorium Inorganic materials 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 6
- YZUCHPMXUOSLOJ-UHFFFAOYSA-N ethyne;thorium Chemical compound [Th].[C-]#[C] YZUCHPMXUOSLOJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 7
- 229910021386 carbon form Inorganic materials 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 2
- 150000001247 metal acetylides Chemical class 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 240000002989 Euphorbia neriifolia Species 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- WLTSUBTXQJEURO-UHFFFAOYSA-N thorium tungsten Chemical compound [W].[Th] WLTSUBTXQJEURO-UHFFFAOYSA-N 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
- C22C1/1068—Making hard metals based on borides, carbides, nitrides, oxides or silicides
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Ceramic Products (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
Verfahren zur Herstellung mechanisch sehr fester Körper von beliebiger vorgeschriebener Form aus Wolfram, Thorium, Molybdän und Kohlenstoff Die Erfindung bezieht sich auf ein Verfahren zur Herstellung mechanisch sehr fester Körper bestimmter Form aus Wolfram, Thorium, Kohlenstoff und Molybdän.Process for the production of mechanically very strong bodies of any prescribed form from tungsten, thorium, molybdenum and carbon The invention refers to a process for the production of certain mechanically very strong bodies Form made from tungsten, thorium, carbon and molybdenum.
Das Wesen der Erfindung besteht darin, (iaß ungeschmolzenes Rohwolfram mit Thoriumkarbid und 1'Iolybdän in bestimmten Verhältnissen gemischt und in den Formen zusammengeschmolzen wird.The essence of the invention consists in (iaß unmelted raw tungsten mixed with thorium carbide and 1'Iolybdenum in certain proportions and in the Forms is fused together.
Es sind Karbidlegierungen bekannt geworden, die einen Zusatz von Thor bzw. Cer besitzen. Bei diesen handelt es sich aber um komplexe Legierungen, die größere Mengen an Titan, gegebenenfalls auch noch Eisen, enthalten, also eine wesentlich andere Zusammensetzung aufweisen als die Körper, deren Herstellung Gegenstand der Erfindung ist. Die eisenhaltigen Legierungen sind überdies den eisenfreien Hartmetallegierungen nicht gleichwertig, insbesondere erheblich weicher.Carbide alloys have become known that have an addition from Thor or have cerium. However, these are complex alloys that contain larger amounts of titanium, possibly also iron, so a substantial amount have a different composition than the bodies whose manufacture is the subject of Invention is. The iron-containing alloys are also the iron-free hard metal alloys not equivalent, in particular considerably softer.
Bei der Herstellung von Stahllegierungen ist es bekannt geworden, das Wolfram durch Molybdän zu ersetzen. Dies hat mit dem vorliegenden Erfindungsgedanken nichts zu tun.In the production of steel alloys it has become known replace the tungsten with molybdenum. This has to do with the present inventive concept Nothing to do.
Im Gegensatz zu den bekannten Verfahren zur Herstellung sehr fester Körper bestimmter Form aus den Karbiden der hochwertigen Metalle, bei denen diese Metallkarbide zunächst im Schmelzprozeß hergestellt, alsdann gepulvert und dann mit oder ohne Beiinengungen einem zweiten Erhitzungsprozeß unterworfen werden, welcher bis zum Schmelzpunkt oder nahezu bis zum Schmelzpunkt geht, werden nach dem Verfahren gemäß der Erfindung mechanisch sehr feste Körper von bestimmer, maßgerechter Form durch Zusammenschmelzen der metallischen Bestandteile unmittelbar in den Formen hergestellt. Dabei kommt es auf ein besonderes Mischungsverhältnis des Rohwolframs, Thoriumkarbids und Molybdäns an. Durch den Zusatz von Thorium bzw. Thoriumkarbid und Molybdän zum Wolfram, insbesondere Rohwolfram, erhält man eine Legierung von sehr feinem Korn und größter Härte, die daneben hohe mechanische Festigkeit und durchaus homogenes Gefüge besitzt.In contrast to the known methods of manufacturing very solid Body of a certain shape made from the carbides of the high-quality metals in which these Metal carbides first produced in the melting process, then powdered and then be subjected to a second heating process with or without admixtures, which goes up to the melting point or almost to the melting point, are according to the method according to the invention mechanically very strong body of certain, dimensionally accurate shape by melting the metallic components together directly in the molds manufactured. There is a special mixing ratio of raw tungsten, Thorium carbide and molybdenum. By adding thorium or thorium carbide and molybdenum to tungsten, especially raw tungsten, an alloy of very fine grain and the greatest hardness, as well as high mechanical strength and has a thoroughly homogeneous structure.
Das Thoriumkarbid hat einen Kohlenstoffgehalt von etwa 12 bis 14°/a; die Kohlung des Schmelzkörpers findet daher zum Teil durch das zugesetzte Thoriumkarbid statt.The thorium carbide has a carbon content of about 12 to 14 ° / a; the carbonization of the fused body is therefore partly due to the added thorium carbide instead of.
Beim Niederschmelzen des Metallgemisches, des Wolfram-Thoriumkarbid-Gemisches, findet sofort eine Abgabe des Kohlenstoffes an das kohlearme Metall, z. B. Wolfram, statt, das Kohlenstoff aber auch, wenn auch in geringem Maße, aus der Form aufnimmt. Das Legierungsgemisch besitzt auch hier einen Sättigungskohlenstoffgehalt von 4,5 bis 5 °/o.When melting down the metal mixture, the tungsten-thorium carbide mixture, immediately finds a release of the carbon to the low-carbon metal, e.g. B. tungsten, instead, the carbon also absorbs from the mold, albeit to a small extent. Here too, the alloy mixture has a saturation carbon content of 4.5 up to 5 ° / o.
Man verwendet erfindungsgemäß etwa ioo Gewichtsteile ungeschmolzenes Roh- Wolfram in gepulvertem Zustand, 5 bis io Gewichtsteile Thoriumkärbid und 3 bis 5 Gewichtsteile Molybdän, ebenfalls in gepulvertem Zustand.According to the invention, about 100 parts by weight of unmelted material are used Raw- Tungsten in a powdered state, 5 to 10 parts by weight of thorium carbide and 3 to 5 parts by weight of molybdenum, also in a powdered state.
Das Gemisch wird in einer Graphitform, die in einem geeigneten Ofen, vorzugsweise einem Kohlerohrwiderstandsofen, eingesetzt ist, zusammengeschmolzen.The mixture is placed in a graphite mold, which is placed in a suitable furnace, preferably a carbon tube resistance furnace, is melted together.
Das in dem Metallgemisch vorhandene Thorium bzw. ungesättigte Thoriumkarbid verleiht dem Erzeugnis neben der besonderen Härte eine große Zähigkeit, was seine Anwendungsmöglichkeit erhöht. Wenn das Wolframmetall etwas sauerstoffhaltig ist, so bewirkt das Thoriumkarbid auch gleichzeitig eine Reduktion des anwesenden Oxyds zu Metall.The thorium or unsaturated thorium carbide present in the metal mixture gives the product, in addition to its special hardness, great toughness, which is its Application possibility increased. If the tungsten metal contains some oxygen, so the thorium carbide also causes a reduction of the oxide present at the same time to metal.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL62568D DE566996C (en) | 1925-02-25 | 1925-02-25 | Process for the production of mechanically very strong bodies of any prescribed shape from tungsten, thorium, molybdenum and carbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL62568D DE566996C (en) | 1925-02-25 | 1925-02-25 | Process for the production of mechanically very strong bodies of any prescribed shape from tungsten, thorium, molybdenum and carbon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE566996C true DE566996C (en) | 1932-12-24 |
Family
ID=7280634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEL62568D Expired DE566996C (en) | 1925-02-25 | 1925-02-25 | Process for the production of mechanically very strong bodies of any prescribed shape from tungsten, thorium, molybdenum and carbon |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE566996C (en) |
-
1925
- 1925-02-25 DE DEL62568D patent/DE566996C/en not_active Expired
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